Not many people can say the Queen of England has seen their bare backside, but Liam Warriner of Australia can.

During the monarch’s recent visit to Brisbane, her motorcade was treated to a “full moon” when Warriner dropped trou and ran about 50 yards alongside the cars with an Australian flag wedged between his buttocks.

The 22-year-old construction worker said he pulled the stunt after being dared by friends, but police didn’t find it very funny. Warriner was arrested and charged with creating a public nuisance and willful exposure.

Still, he’s unrepentant.

“Everybody’s seen someone’s butt, come on,” he said. “You see it on TV all the time, you see it in movies, it’s accepted in PG rated programming these days, but yet it’s an offense to the Queen.”